marines.co.jp

Readiness by lane

Green: marines.co.jp. Thin bar: Sports Broadcast & Fantasy Games peer median.

Priority fixes for marines.co.jp

Ordered by impact and by how common each practice is among peers.

1. Priority 1 · Harden

   TLS 1.3 negotiated

   Observed: The TLS connection negotiated TLSv1.2.

   Why it matters: TLS 1.3 removes legacy cipher suites and completes the handshake in fewer round trips, so it is both safer and faster for new connections.

   What to do: Enable TLS 1.3 on your CDN or server. Keep TLS 1.2 available for older clients unless you have checked your audience.

   90% of Sports Broadcast & Fantasy Games peers do this. Limit: Certificate and protocol were observed from one vantage point; CDNs can present different certificates by region.

   Guide: HTTPS and TLS Guide for Website Owners

2. Priority 2 · Enable

   robots.txt published

   Observed: No robots.txt file was returned at the site root.

   What to do: Publish /robots.txt with any crawl rules you need and a Sitemap: line pointing to your XML sitemap.

   89% of Sports Broadcast & Fantasy Games peers do this.

   Guide: Robots.txt Guide: Control Crawling Without Hiding Mistakes

3. Priority 3 · Accelerate

   Static files cached for 30 days or more

   Observed: A same-site stylesheet or script was cacheable for no max-age, short of the 30-day benchmark.

   What to do: Give versioned (fingerprinted) CSS, JavaScript, fonts and images Cache-Control: public, max-age=31536000, immutable, and change the file name whenever the content changes.

   On WordPress: Caching plugins or your host can set long browser cache lifetimes for theme and plugin assets.

   55% of Sports Broadcast & Fantasy Games peers do this.

   Guide: Browser Caching Guide for Website Owners

4. Priority 4 · Harden

   HSTS kept for at least a year

   Observed: The homepage response did not include a Strict-Transport-Security header.

   What to do: Send Strict-Transport-Security on HTTPS responses. Start with a short max-age (for example 300 seconds), confirm every subdomain works over HTTPS, then raise it in steps to 31536000. Add includeSubDomains only when all subdomains are HTTPS. HSTS preload is optional and hard to undo; hstspreload.org itself does not recommend it by default.

   27% of Sports Broadcast & Fantasy Games peers do this.

   Guide: HTTPS and TLS Guide for Website Owners

What marines.co.jp already does well

Practices fewer than half of Sports Broadcast & Fantasy Games peers use.

• Referrer-Policy setReferrer-Policy present.16% of peers
• Modern image formats in useWebP or AVIF images detected.35% of peers
• Structured data presentJSON-LD structured data found.50% of peers

What we saw

Homepage checked

https://www.marines.co.jp/

Homepage response

HTTP 200

TLS

TLSv1.2, HTTP/2

Certificate

GlobalSign, 199-day validity, expiring 2027-04-16

Platform or framework

WordPress

DNS operators

1 self-run or other nameserver domain

DMARC policy

p=none

Homepage HTML

433 KB, gzip

Images on homepage

296 (webp 15, svg 2)

Limits: homepage only, one location, one moment. Header checks reflect the homepage response; other pages may differ.

Stack and providers

Seen in the homepage response, certificate and DNS. Provider pages compare how their customers configure the same checks.

All 31 checks

Select a gap for the method and fix. How each check works

Compare with other Sports Broadcast & Fantasy Games sites

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• livescore.cz51
• planetf1.com51
• qol.az51

Sports Broadcast & Fantasy Games readiness benchmark